We tried connecting BDI3000 using JTAG interface and have following observation:
When the CPU got stuck, the BDI is still alive and allow to access some regions, but L4-WKUP region. Looks like problem is not 32K timer but all L4-WKUP module.
The BDI fails to access any of the L4-WKUP registers (WKUP_TA_PRM, GPIO1, WDTIMER2, GPTIMER1, SYNCTIMER32K, WKUP_AP, WKUP_IA_CORE, WKUP_LA, WKUP_IS_EMU) when the CPU hang. It shows “# DAP: error during debug access”.
We could dump the following regions after the hang:
The BDI could dump registers of following regions:
Address 0x48003000 size 0x800
Address 0x48004000 size 0x2000
Address 0x48007000 size 0x1000
Address 0x48306000 size 0x2000
Address 0x48321000 size 0x1000
Address 0x48040000 size 0x2000
Address 0x48051000 size 0x1000
Address 0x48057000 size 0x1000
Address 0x48061000 size 0x1000
Address 0x48063000 size 0x1000
Address 0x48065000 size 0x1000
Address 0x4806B000 size 0x1000
Address 0x4806D000 size 0x1000
Address 0x48071000 size 0x1000
Address 0x48073000 size 0x1000
Address 0x48075000 size 0x1000
Address 0x48087000 size 0x1000
Address 0x48089000 size 0x1000
Address 0x48095000 size 0x1000
Address 0x48097000 size 0x1000
Address 0x48099000 size 0x1000
Address 0x4809B000 size 0x1000
Address 0x4809D000 size 0x1000
Address 0x480AC000 size 0x1000
Address 0x480AE000 size 0x1000
Address 0x480B3000 size 0x1000
Address 0x480B5000 size 0x1000
Address 0x480B7000 size 0x1000
Address 0x480B9000 size 0x1000
Address 0x480BB000 size 0x1000
Address 0x480C0000 size 0x1000
Address 0x480C8000 size 0x1000
Address 0x480CA000 size 0x1000
Address 0x480CC000 size 0x1000
Address 0x480CE000 size 0x1000
Address 0x48340000 size 0x1000
Address 0x49000000 size 0x1000
Address 0x49000800 size 0x1000
Address 0x49001000 size 0x1000
Address 0x49021000 size 0x1000
Address 0x49023000 size 0x1000
Address 0x49025000 size 0x1000
Address 0x49027000 size 0x1000
Address 0x49029000 size 0x1000
Address 0x4902B000 size 0x1000
Address 0x49031000 size 0x1000
Address 0x49033000 size 0x1000
Address 0x49035000 size 0x1000
Address 0x49037000 size 0x1000
Address 0x49039000 size 0x1000
Address 0x4903B000 size 0x1000
Address 0x4903D000 size 0x1000
Address 0x4903F000 size 0x1000
Address 0x49041000 size 0x1000
Address 0x49043000 size 0x1000
Address 0x49051000 size 0x1000
Address 0x49053000 size 0x1000
Address 0x49055000 size 0x1000
Address 0x49057000 size 0x1000
Address 0x49059000 size 0x1000
Address 0x54005000 size 0x1000
Address 0x54006000 size 0x1000
Address 0x54006800 size 0x1000
Address 0x54007000 size 0x1000
Address 0x54008000 size 0x800
Address 0x54018000 size 0x1000
Address 0x5401A000 size 0x1000
Address 0x5401C000 size 0x1000
Address 0x5401E000 size 0x1000
Address 0x5401F000 size 0x1000
Address 0x54730000 size 0x1000
Address 0x68000000 size 0x800
Address 0x68001400 size 0x2400
Address 0x68004000 size 0x3400
Address 0x68010000 size 0x400
Address 0x68012400 size 0x1000
Address 0x68014000 size 0x400
Address 0x48002030 size 0x220
Thanks.